Starting out for the southern end of the Reading Viaduct means walking alongside a live railroad track, vigilant for the sound of a CSX freight train approaching from behind. Your destination is the mouth of an abandoned tunnel, which will pull you into stretches of almost total darkness thirty feet below ground. You aren’t headed for the tunnel because you love tunnels, but to glimpse the diversity of landscapes that makes up Philadelphia’s Reading Viaduct before it becomes the city’s answer to New York City’s Highline. You are there for the tunnel as much as for what’s on the other side: the promise of meadowland and prairie hiding in plain sight.

The Reading Viaduct may one day become a linear park transecting downtown Philadelphia. Should that happen, the Viaduct would be like no other park in the world. The three-mile stretch runs thirty feet underground at one end and emerges as an elevated line thirty feet above street level on the other. Since the 1980s, it has been abandoned. Sections of the Viaduct may undergo development as early as next year. Read More »